Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c391a105024ce13…

MALICIOUS

PDF

90.0 KB
MD5: be8e5d27efe733c6f2df0cd9f7fe218f SHA-1: a66ea623caf542b3cf989a6dc4cff16cc6966f92 SHA-256: 7c391a105024ce1331f13489d6d7d4f9e99da051d4de2267df5633e26e88a8b0
168 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file contains an embedded XFA form that triggers the CVE-2010-0188 exploit, targeting a vulnerability in Adobe Reader's LibTIFF component. The embedded JavaScript attempts to deobfuscate and likely execute a second-stage payload. While the exact payload and its ultimate goal are not fully discernible due to obfuscation, the exploit and script execution indicate a high likelihood of further system compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188
    PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
  • ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • Embedded script payload in PDF stream low PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_0000023e.bin
0b5f0ae86a696afcfa181150cc938b531a6711a18218486fe081c8f141c0351c		 pdf-embedded-script PDF raw stream script payload at offset 0x23E 91395 bytes

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